Non-small cell lung cancer is one of the cancers with the highest incidence and mortality rate in the world, and precise prognostic models can guide clinical treatment plans. With the continuous upgrading of computer technology, deep learning as a breakthrough technology of artificial intelligence has shown good performance and great potential in the application of non-small cell lung cancer prognosis model. The research on the application of deep learning in survival and recurrence prediction, efficacy prediction, distant metastasis prediction, and complication prediction of non-small cell lung cancer has made some progress, and it shows a trend of multi-omics and multi-modal joint, but there are still shortcomings, which should be further explored in the future to strengthen model verification and solve practical problems in clinical practice.

Objective To construct a prognosis prediction model of primary liver cancer after surgical treatment based on synthetic minority over-sampling technique(SMOTE)algorithm and machine learning model.Methods A retrospective cohort study was conducted on 4 297 patients with primary liver cancer from the surveillance,epidemiology,and end results(SEER)database.One-Hot Encoding and Multiple Imputation were used to preprocess the collect data,and SMOTE algorithm was employed to solve the imbalance of data categories.The obtained clinical variables were included in the machine learning model.Based on decision tree(DT),random forest(RF),gradient boosting decision tree(GBDT)and eXtreme Gradient Boosting(XGBoost),a prognostic prediction model(SMOTE+DT/RF/GBDT/XGBoost)was build,and then the best prediction model was determined by comparing the performance of various models.Finally,a prognostic analysis system for primary liver cancer was developed based on the optimal model,which was then visualized.Results The combination model SMOTE+RF showed the best predictive performance,with higher area under the curve(0.895),accuracy(0.811)and precision(0.806)than those of other models in receiver operating characteristic curve(ROC)analysis.Conclusion The SMOTE+RF prognostic prediction model can effectively predict the survival outcome of patients with primary liver cancer.

Objective To monitor the antifungal resistance of clinical isolates of Candida spp.in the East China region.Methods MALDI-TOF MS or molecular methods were used to re-identify the strains collected from January 2018 to December 2022.Antifungal susceptibility testing was performed using the broth microdilution method.The susceptibility test results were interpreted according to the breakpoints of 2022 Clinical and Laboratory Standards Institute(CLSI)documents M27 M44s-Ed3 and M57s-Ed4.Results A total of 3 026 strains of Candida were collected,65.33％of which were isolated from sterile body sites,mainly from blood(38.86％)and pleural effusion/ascites(10.21％).The predominant species of Candida were Candida albicans(44.51％),followed by Candida parapsilosis complex(19.46％),Candida tropicalis(13.98％),Candida glabrata(10.34％),and other Candida species(0.79％).Candida albicans showed overall high susceptibility rates to the 10 antifungal drugs tested(the lowest rate being 93.62％).Only 2.97％of the strains showed dose-dependent susceptibility(SDD)to fluconazole.Candida parapsilosis complex had a SDD rate of 2.61％and a resistance rate of 9.42％to fluconazole,and susceptibility rates above 90％to other drugs.Candida glabrata had a SDD rate of 92.01％and a resistance rate of 7.99％to fluconazole,resistance rates of 32.27％and 48.24％to posaconazole and voriconazole non-wild-type strains(NWT),respectively,and susceptibility rates above 90％to other drugs.Candida tropicalis had resistance rates of 29.55％and 26.24％to fluconazole and voriconazole,respectively,resistance rates of 76.60％and 21.99％to posaconazole and echinocandins non-wild-type strains(NWT),and a resistance rate of 2.36％to echinocandins.Conclusions The prevalence and species distribution of Candida spp.in the East China region are consistent with previous domestic and international reports.Candida glabrata exhibits certain degree of resistance to fluconazole,while Candida tropicalis demonstrates higher resistance to triazole drugs.Additionally,echinocandins resistance has emerged in Candida albicans,Candida glabrata,Candida tropicalis,and Candida parapsilosis.

Objective To explore the changes and significane of USP20 and HIF-α expression in breast cancer.Methods Following transfection of shRNA-USP20 lentivirus into breast cancer MDA-MB-231 cells,the gene and protein expression levels of USP20 were detected using fluorescence quantitative PCR and Western Blot.Subsequently,the overexpression of USP20 was observed to determine its effect on HIF-α expression.Similarly,siRNA-USP20 was used to knock down USP20 in breast cancer MDA-MB-231 cells,followed by detection of gene and protein expression levels using fluorescence quantitative PCR and Western Blot.The subsequent changes in HIF-α expression were then examined.Rusults The positive expression rates of USP20 and HIF-α in breast cancer tissues were 69.6%and 46.83%,respectively,while they were negatively expressed in the adjacent normal tissues,with statistically significant differences(P＜0.01).The positive expressions of USP20 and HIF-α were predomi-nantly observed in the cytoplasm of breast cancer tissue,with a smaller amount present in the nucleus.There was a significant positive correlation between USP20 and HIF-α in breast cancer.Following transfection of shRNA-USP20 lentivirus into MDA-MB-231 cells,both the protein and gene expression levels of USP20 significantly increased(P＜0.01).Over-expression of USP20 did not affect HIF-α mRNA levels but led to a significant increase in HIF-α protein expression(P＜0.01).Conversely,siRNA-USP20 interference resulted in a significant decrease in both the protein and gene expression levels of USP20(P＜0.01),without affecting HIF-α mRNA levels;however,it caused a notable reduction in HIF-α protein expression(P＜0.01).Conclusion The expression of USP20 exhib-ited a significant positive correlation with HIF-α in breast cancer.Overexpression of USP20 led to a substantial increase in HIF-α protein expression,while knock-down of the USP20 gene resulted in a significant decrease in HIF-α protein levels.Therefore,it can be inferred that USP20 may exert its influence on the development of breast cancer through modulation of HIF-α expression,thereby providing crucial experimental evidence for clinical treat-ment,prognosis,and further investigations.

Objective:To compare the effectiveness and safety of all-suture anchors and single-row suture anchors for rotator cuff repair.Methods:A prospective randomized controlled study was conducted to analyze the clinical data of 50 patients with rotator cuff tear admitted to Second Affiliated Hospital of Zhejiang University School of Medicine between July 2019 and September 2021. They were divided into two groups according to the random table: 25 patients to receive repair with single-row suture anchors (control group) and the other 25 with all-suture anchors (trial group). Visual Analogue Scale (VAS), University of California, Los Angeles (UCLA) shoulder score, American Shoulder and Elbow Surgeons (ASES) score and shoulder range of motion were compared between the two groups before surgery, at 3 months after surgery and at the last follow-up. The rotator cuff retear rate of the two groups was evaluated according to Sugaya classification at 6 months after surgery. Breakage or anchor loosening during surgery, healing of incision and presence of infections or neurological complications after surgery, and change of the anchor position and periosteal reaction at the insertion site at 3 and 6 months after surgery were observed in the two groups.Results:A total of 50 patients with rotator cuff tear were involved in this study, including 17 males and 33 females, aged 40-73 years [(59.1±10.3)years]. All patients were followed up for 6-9 months [(6.7±1.0)months]. The differences in VAS, UCLA shoulder score, ASES score, and shoulder range of motion between the two groups were statistically insignificant before surgery (all P>0.05). The VAS at 3 months after surgery and at the last follow-up in the control group was 2.0 (2.0, 4.0)points and 2.0 (0.0, 2.0)points, respectively, with no statistical differences from 2.0 (2.0, 2.0)points and 2.0 (0.0, 2.0)points in the trial group (all P>0.05). In the control group, the UCLA shoulder score and ASES score at 3 months after surgery and the ASES score at the last follow-up were (25.1±4.5)points, 78.8 (71.6, 85.8)points and 85.8 (85.8, 93.0)points, respectively, with no statistical differences from (26.8±4.7)points, 85.8 (82.3, 85.8)points, and 92.8 (85.8, 100.0)points in the trial group (all P>0.05). At the last follow-up, the UCLA shoulder score of the control group was (29.2±3.9)points, which was lower than that of the trial group [(31.6±2.4)points] ( P<0.05). The differences in shoulder motion between the two groups at 3 months after surgery and at the last follow-up were not statistically significant (all P>0.05). The VAS, UCLA shoulder score, and ASES score at 3 months after surgery and at the last followup in both groups were significantly improved compared to their preoperative values (all P<0.05); further improvements were observed at the last follow-up compared with those at 3 months after surgery (all P<0.05). The rotator cuff retear rate at 6 months after surgery was 16.7% (4/24) in the control group, not statistically different from 4.3% (1/23) in the trial group ( P>0.05). There were no incidences of anchor loosening or breakage during surgery. All incisions were healed after surgery, with no infections or neurological complications. No grades II to III periosteal reactions at the anchor insertion sites were observed in either group at 3, 6 months after surgery. The percentage of patients with grade 0 periosteal reaction at the anchor insertion site at 3 months after surgery was 4.2% (1/24) in the control group, significantly lower than 30.4% (7/23) in the trial group ( P<0.05). Conclusion:All-suture anchors and single-row suture anchors are effective in rotator cuff repair, but the former results in better shoulder function and fewer periosteal reactions in the anchor insertion site in the early stage.

Objective To investigate the effect of Xuefu Zhuyu decoction on nonalcoholic fatty liver disease (NAFLD) and its material basis. Methods In experiment 1 for exploring the effect of Xuefu Zhuyu decoction on mice with NAFLD induced by high-fat diet, 50 healthy male C57BL/6J mice were randomly divided into normal group, model group, high- and low-dose Xuefu Zhuyu decoction groups, and obeticholic acid control group, with 10 mice in each group. The mice in the normal group were given control diet, and those in the other groups were given high-fat diet. Gastric administration was started at week 13, and related samples were collected at the end of week 16. Food intake and body weight were recorded, enzyme-linked immunosorbent assay was used to measure the serum level of fasting insulin, fasting blood glucose was measured, and insulin resistance index was calculated. HE staining and NAFLD activity score (NAS) were used to observe liver histopathology in mice, oil red O staining was used to observe lipid deposition, and triglyceride (TG) level in liver tissue and serum alanine aminotransferase (ALT) level were measured. In experiment 2 for exploring the effect of different extracts of Xuefu Zhuyu decoction on mice with NAFLD induced by high-fat diet, the methods of water decocting, water extraction and alcohol precipitation, and petroleum ether extraction were used to obtain the extracts 1, 2, and 3 of Xuefu Zhuyu decoction, and 54 healthy male C57BL/6J mice were randomly divided into normal group, model group, Xuefu Zhuyu decoction extract 1, 2, and 3 groups, and Xuefu Zhuyu decoction control group, with 9 mice in each group. The mice in the normal group were given control diet, and those in the other groups were given high-fat diet. Gastric administration was started at week 13, and related samples were collected at the end of week 16. Food intake and body weight were recorded, and enzyme-linked immunosorbent assay was used to measure the serum level of fasting insulin, fasting blood glucose was measured, and insulin resistance index was calculated. HE and NAS were used to observe liver histopathology in mice, oil red O staining was used to observe lipid deposition, and the levels of TG and gamma-glutamyl transpeptidase (GGT) in liver tissue and the serum level of ALT were measured. The t -test was used for comparison of normally distributed continuous data between two groups; a one-way analysis of variance was used for comparison between multiple groups, and the least significant difference t -test was used for further comparison between two groups. The Kruskal-Wallis H test was used for comparison of non-normally distributed continuous data between multiple groups and further comparison between two groups. Results In experiment 1, compared with the model group, the high- and low-dose Xuefu Zhuyu decoction groups and the obeticholic acid control group had significant reductions in body weight, insulin resistance index, the distribution of vacuolar lipid droplets in liver tissue, intralobular inflammation, the ballooning degeneration of hepatocytes, NAS score, the level of TG in liver tissue, and the serum level of ALT (all P < 0.05). Compared with obeticholic acid, high- and low-dose Xuefu Zhuyu decoction had a significantly better effect in reducing body weight, insulin resistance index, and total NAS score (all P < 0.05), and low-dose Xuefu Zhuyu decoction had a significantly better effect in improving serum ALT ( P < 0.05). In experiment 2, compared with the model group, the Xuefu Zhuyu decoction extract 1, 2, and 3 groups had significant reductions in fasting blood glucose, insulin resistance index, the distribution of lipid droplets in liver tissue, intralobular inflammation lesions, the ballooning degeneration of hepatocytes, total NAS score, and the level of TG in the liver (all P < 0.05). Compared with the model group, the extract 1 group had a significant reduction in body weight ( P < 0.05); the extract 2 and 3 groups had a significant reduction in the serum level of ALT ( P < 0.05); the extract 2 group had a significant reduction in the level of GGT in liver tissue ( P < 0.05). The extract 2 of Xuefu Zhuyu decoction had the closest effect to compound Xuefu Zhuyu decoction. Conclusion Xuefu Zhuyu decoction and its extracts can help to achieve varying degrees of improvement in NAFLD induced by high-fat diet in mice, and the extract 2 of Xuefu Zhuyu decoction might be the main material basis for Xuefu Zhuyu decoction.

Objective:To explore the expression of long non-coding RNA LINC00630 in bladder cancer cell lines, and to explore the effect of interference with its expression in vitro on the proliferation and migration of bladder cancer cells.Methods:Real-time fluorescent quantitative polymerase chain reaction (qRT-PCR) was used to detect the expression of LINC00630 in bladder cancer cell lines 5637, BIU-87, T24, J82 and normal bladder epithelial cell line SV-HUC-1. The bladder cancer cell line with the highest LINC00630 expression was selected for follow-up experiments, then the cell line infected with the control lentivirus was used as the control group, and the cell line infected with the lentivirus that could interfere with the expression of LINC00630 was used as the experimental group. qRT-PCR was used to detect the expression of LINC00630 in the two groups of cells. MTS method and cell scratch test were used to detect the proliferation and migration abilities of cells in the two groups. qRT-PCR was used to detect the expression of neuregulin 1 (NRG1) mRNA in the two groups of cells, and Western blot was used to detect the expressions of NRG1 protein, cell proliferation-related proteins (cyclin D3 and CDK2) and cell migration-related proteins (Vimentin and N-cadherin) in the two groups of cells.Results:Compared with SV-HUC-1 cells (1.05±0.17), the expression of LINC00630 was significantly increased in all bladder cancer cell lines (all P < 0.01), and the expression was highest in J82 cells (relative expression 5.83±0.42). Compared with J82 cells of the control group, the expression of LINC00630 in J82 cells of the experimental group decreased (0.18±0.02 vs. 1.00±0.05, t=14.36, P < 0.01); from day 2 of transfection, the cell proliferation activity of the experimental group was lower than that of the control group (all P < 0.05). The cell scratch closure rate of the experimental group was lower than that of the control group [(27.4±7.1)% vs. (66.0±5.4)%, t = 4.31, P < 0.01]. Therelative expression of NRG1 mRNA in the experimental group was lower than that in the control group (0.34±0.03 vs. 1.07±0.24, t = 2.99, P < 0.05). Compared with the control group, the expressions of NRG1 protein, cell proliferation-related proteins and cell migration-related proteins in the experimental group were reduced. Conclusions:LINC00630 is up-regulated in bladder cancer cell lines, and interference with LINC00630 may inhibit the proliferation and migration of J82 cells by down-regulating the expression of NRG1 gene. LINC00630 may be a new molecular target for the treatment of bladder cancer.

Objective:To investigate the expression of long non-coding RNA (lncRNA) BDNF-AS in kidney cancer tissues, and its effect on the proliferation and migration ability of kidney cancer cells and the molecular mechanism.Methods:Real-time reverse quantitative polymerase chain reaction (rRT-PCR) was used to detect the expression levels of BDNF-AS gene in renal cancer tissues, tumor-adjacent tissues of 67 renal cancer patients and normal renal tubular epithelial cells HK-2 and renal cancer cell lines A498, ACHN, OS-RC-2, Caki-1, 786-O in Huangshi Central Hospital of Edong Medical Group from May 2017 to July 2018. The kidney cancer cell line with the lowest expression of BDNF-AS was taken as the research object. Transient transfection with BDNF-AS overexpression plasmid was treated as the experiment group or a plasmid carrying meaningless sequences was treated as the control group. rRT-PCR was used to detect transfection efficiency. After the transfection with Caki-1 for 24 h, methythiazolyl tetrazolium (MTT) method was used to detect the proliferation of cells in both groups, Transwell migration assay was applied to detect the cell migration ability, rRT-PCR was used to detect the expression level of protein tyrosine phosphatase receptor type G (PTPRG) mRNA and Western blot was used to detect the expression level of PI3K-AKT pathway related-proteins.Results:The relative expression level of BDNF-AS in kidney cancer tissues was lower than that in tumor-adjacent tissues (0.96±0.24 vs. 4.62±0.84, t = 41.76, P < 0.01). The relative expression of BDNF-AS in kidney cancer cell lines was lower than that in normal renal tubular epithelial cells HK-2 (all P < 0.05), and the relative expression in Caki-1 cells was the lowest (0.10±0.01). The relative expression of BDNF-AS in the experimental group was higher than that in the control group ( P < 0.01). From the second day of transfection, the proliferation ability of Caki-1 cells in the experimental group was lower than that in the control group (all P < 0.05). The number of Caki-1 migrated cells in the experimental group was lower than that in the control group after migration for 15 h of Caki-1 cells transfected for 24 h [(51±8) vs. (192±25), t = 5.31, P < 0.01]. After 48 h transfection, the relative expression of PTPRG mRNA in Caki-1 cells ( P < 0.01) and protein expression of the experimental group were higher than those of the control group, the expression levels of PI3K-AKT signaling pathway related-proteins p-PI3K, p-AKT, p-Tpl2 in Caki-1 cells of the experimental group were lower than those of the control group. Conclusions:The expression of BDNF-AS is down-regulated in kidney cancer tissues and cell lines. Overexpression of BDNF-AS can inhibit the proliferation and migration ability of kidney cancer Caki-1 cells. The molecular mechanism may be related to the transduction that BDNF-AS promotes PTPRG gene expression and interferes with PI3K-AKT signaling pathway.

OBJECTIVETo fabricate organic-inorganic composite tissue engineering scaffolds for reconstructing calcified cartilage layer based on three-dimensional (3D) printing technique.

METHODSThe scaffolds were developed by 3D-printing technique with highly bioactive calcium-magnesium silicate ultrafine particles of 1%, 3% and 5% of mass fraction, in which the organic phases were composed of type I collagen and sodium hyaluronate. The 3D-printed scaffolds were then crosslinked and solidified by alginate and CaCl₂ aerosol. The pore size and distribution of inorganic phase were observed with scanning electron microscope (SEM); the mechanical properties were tested with universal material testing machine, and the porosity of scaffolds was also measured.

RESULTSPore size was approximately (212.3 ± 34.2) μm with a porosity of (48.3 ± 5.9)%, the compressive modulus of the scaffolds was (7.2 ± 1.2) MPa, which was irrelevant to the percentage changes of calcium-magnesium silicate, the compressive modulus was between that of cartilage and subchondral bone.

CONCLUSIONThe porous scaffolds for calcified cartilage layer have been successfully fabricated, which would be used for multi-layered composite scaffolds in osteochondral injury.

Bioprinting ; Cartilage ; growth & development ; Materials Testing ; Porosity ; Printing, Three-Dimensional ; Tissue Engineering ; methods ; Tissue Scaffolds ; chemistry

Objective To investigate cognitive function and behavior characteristics in the childhood onset schizo?phrenia patients with or without obsessive-compulsive symptoms. Methods One hundred forty-nine schizophrenia chil?dren were recruited and 72 healthy children served as children control group. According to the Schedule for Affective Dis?orders and Schizophrenia for School-Age Children-Present and Lifetime Version (K-SADS-PL), the patients were fur?ther divided into two groups, the children with obsessive-compulsive disorder group (70 cases) and the children without obsessive-compulsive disorder group (79 cases). All the children were retrospectively surveyed and the Achenbach’s Child Behavior Check-list (CBCL) was used to assess their social competence and behavioral characteristics at the age from 6-year-old to 10-year-old. The cognitive function was estimated with WISC, STROOP color and word test, trail making test, visal spatial memory test and maze test. Results Compare to the control group, the CBCL factor scores of behavior problems were higher (P<0.01), social ability factor scores were lower (P<0.05) and all factor scores in the cog?nitive function tests were lower (P<0.05) in the two patients groups. Compare to the patients without obsessive-compul?sive symptoms, the CBCL factor scores of the school situation (P<0.01), splitting force (P<0.01), and physical complaints (P<0.01) were significantly higher and the scores were significantly lower in the test of common sense (P<0.01), wood (P<0.01), STROOP (P<0.01) and BVMT-R (P<0.01) in those with obsessive-compulsive symptoms. Correlation analysis showed that social competence total scores were positively correlated with similarity in the patients with obsessive-com?pulsive symptoms (r=0.31, P<0.01);while behavior problems total scores were negatively correlated with wood (r=-0.31, P<0.01) and patchwork (r=-0.32, P<0.01) in the patients without obsessive-compulsive symptoms. Conclusion The schizophrenia children with obsessive-compulsive symptoms have more behavioral problems in pre-symptom period and their cognitive dysfunction are more severe following onset of the disease. Cognitive function is related to behavioral prob?lems and social competence in the schizophrenia children with or without obsessive-compulsive symptoms .